package lab02.test2;

import java.util.Scanner;

public class test {
    public static void main(String[] args) {
        Round f=new Round();
        System.out.print("请输入圆的半径：");
        Scanner sc = new Scanner(System.in);
        double radius = sc.nextDouble();
        f.setRadius(radius);
        f.count();
    }
}
